\begin{code}
module RnMonad(
module RnMonad,
+
+ module RdrName, -- Re-exports
+ module Name, -- from these two
+
Module,
FiniteMap,
Bag,
- Name,
RdrNameHsDecl,
RdrNameInstDecl,
Version,
import HsSyn
import RdrHsSyn
import RnHsSyn ( RenamedFixitySig )
-import BasicTypes ( Version )
-import SrcLoc ( noSrcLoc )
+import BasicTypes ( Version, defaultFixity )
import ErrUtils ( addShortErrLocLine, addShortWarnLocLine,
pprBagOfErrors, ErrMsg, WarnMsg, Message
)
-import Name ( Name, OccName, NamedThing(..),
- isLocallyDefinedName, nameModule, nameOccName,
- decode, mkLocalName
+import RdrName ( RdrName, dummyRdrVarName, rdrNameModule, rdrNameOcc,
+ RdrNameEnv, emptyRdrEnv, extendRdrEnv,
+ lookupRdrEnv, addListToRdrEnv, rdrEnvToList, rdrEnvElts
)
-import Module ( Module, ModuleName, ModuleHiMap, SearchPath, WhereFrom,
- mkModuleHiMaps, moduleName, mkVanillaModule, mkSearchPath
+import Name ( Name, OccName, NamedThing(..), getSrcLoc,
+ isLocallyDefinedName, nameModule, nameOccName,
+ decode, mkLocalName, mkUnboundName, mkKnownKeyGlobal,
+ NameEnv, lookupNameEnv, emptyNameEnv, unitNameEnv, extendNameEnvList
)
+import Module ( Module, ModuleName, WhereFrom, moduleName )
import NameSet
-import RdrName ( RdrName, dummyRdrVarName, rdrNameOcc )
-import CmdLineOpts ( opt_D_dump_rn_trace, opt_HiMap )
-import PrelInfo ( builtinNames )
-import TysWiredIn ( boolTyCon )
+import CmdLineOpts ( DynFlags, dopt_D_dump_rn_trace )
+import PrelInfo ( wiredInNames, knownKeyRdrNames )
import SrcLoc ( SrcLoc, mkGeneratedSrcLoc )
-import Unique ( Unique, getUnique, unboundKey )
-import UniqFM ( UniqFM )
-import FiniteMap ( FiniteMap, emptyFM, bagToFM, lookupFM, addToFM, addListToFM,
- addListToFM_C, addToFM_C, eltsFM, fmToList
- )
+import Unique ( Unique )
+import FiniteMap ( FiniteMap, emptyFM, listToFM, plusFM )
import Bag ( Bag, mapBag, emptyBag, isEmptyBag, snocBag )
-import Maybes ( mapMaybe )
-import UniqSet
-import UniqFM
import UniqSupply
-import Util
import Outputable
+import CmFind ( Finder )
infixr 9 `thenRn`, `thenRn_`
\end{code}
(\ err -> return (Left err))
traceRn :: SDoc -> RnM d ()
-traceRn msg | opt_D_dump_rn_trace = putDocRn msg
- | otherwise = returnRn ()
+traceRn msg
+ = doptsRn dopt_D_dump_rn_trace `thenRn` \b ->
+ if b then putDocRn msg else returnRn ()
putDocRn :: SDoc -> RnM d ()
putDocRn msg = ioToRnM (printErrs msg) `thenRn_`
type RnMG r = RnM () r -- Getting global names etc
-- Common part
-data RnDown = RnDown {
- rn_mod :: ModuleName,
- rn_loc :: SrcLoc,
- rn_ns :: IORef RnNameSupply,
- rn_errs :: IORef (Bag WarnMsg, Bag ErrMsg),
- rn_ifaces :: IORef Ifaces,
- rn_hi_maps :: (ModuleHiMap, -- for .hi files
- ModuleHiMap) -- for .hi-boot files
- }
+data RnDown
+ = RnDown {
+ rn_mod :: Module, -- This module
+ rn_loc :: SrcLoc, -- Current locn
+
+ rn_finder :: Finder,
+ rn_dflags :: DynFlags,
+ rn_gst :: GlobalSymbolTable, -- Both home modules and packages,
+ -- at the moment we started compiling
+ -- this module
+
+ rn_errs :: IORef (Bag WarnMsg, Bag ErrMsg),
+ rn_ns :: IORef NameSupply,
+ rn_ifaces :: IORef Ifaces
+ }
-- For renaming source code
data SDown = SDown {
rn_mode :: RnMode,
- rn_genv :: GlobalRdrEnv,
- -- Global envt; the fixity component gets extended
- -- with local fixity decls
+ rn_genv :: GlobalRdrEnv, -- Global envt
rn_lenv :: LocalRdrEnv, -- Local name envt
-- Does *not* include global name envt; may shadow it
-- we can look up record field names
rn_fixenv :: FixityEnv -- Local fixities
- -- The global ones are held in the
- -- rn_ifaces field
+ -- The global fixities are held in the
+ -- rn_ifaces field. Why? See the comments
+ -- with RnIfaces.lookupFixity
}
data RnMode = SourceMode -- Renaming source code
\begin{code}
--------------------------------
-type RdrNameEnv a = FiniteMap RdrName a
type GlobalRdrEnv = RdrNameEnv [Name] -- The list is because there may be name clashes
-- These only get reported on lookup,
-- not on construction
type LocalRdrEnv = RdrNameEnv Name
-emptyRdrEnv :: RdrNameEnv a
-lookupRdrEnv :: RdrNameEnv a -> RdrName -> Maybe a
-addListToRdrEnv :: RdrNameEnv a -> [(RdrName,a)] -> RdrNameEnv a
-extendRdrEnv :: RdrNameEnv a -> RdrName -> a -> RdrNameEnv a
-
-emptyRdrEnv = emptyFM
-lookupRdrEnv = lookupFM
-addListToRdrEnv = addListToFM
-rdrEnvElts = eltsFM
-extendRdrEnv = addToFM
-rdrEnvToList = fmToList
-
---------------------------------
-type NameEnv a = UniqFM a -- Domain is Name
-
-emptyNameEnv :: NameEnv a
-nameEnvElts :: NameEnv a -> [a]
-addToNameEnv_C :: (a->a->a) -> NameEnv a -> Name -> a -> NameEnv a
-addToNameEnv :: NameEnv a -> Name -> a -> NameEnv a
-plusNameEnv :: NameEnv a -> NameEnv a -> NameEnv a
-extendNameEnv :: NameEnv a -> [(Name,a)] -> NameEnv a
-lookupNameEnv :: NameEnv a -> Name -> Maybe a
-delFromNameEnv :: NameEnv a -> Name -> NameEnv a
-elemNameEnv :: Name -> NameEnv a -> Bool
-
-emptyNameEnv = emptyUFM
-nameEnvElts = eltsUFM
-addToNameEnv_C = addToUFM_C
-addToNameEnv = addToUFM
-plusNameEnv = plusUFM
-extendNameEnv = addListToUFM
-lookupNameEnv = lookupUFM
-delFromNameEnv = delFromUFM
-elemNameEnv = elemUFM
-
--------------------------------
type FixityEnv = NameEnv RenamedFixitySig
-- We keep the whole fixity sig so that we
-- can report line-number info when there is a duplicate
-- fixity declaration
+
+lookupFixity :: FixityEnv -> Name -> Fixity
+lookupFixity env name
+ = case lookupNameEnv env name of
+ Just (FixitySig _ fix _) -> fix
+ Nothing -> defaultFixity
\end{code}
\begin{code}
---------------------------------
-type RnNameSupply
- = ( UniqSupply
-
- , FiniteMap String Int
- -- This is used as a name supply for dictionary functions
- -- From the inst decl we derive a string, usually by glomming together
- -- the class and tycon name -- but it doesn't matter exactly how;
- -- this map then gives a unique int for each inst decl with that
- -- string. (In Haskell 98 there can only be one,
- -- but not so in more extended versions; also class CC type T
- -- and class C type TT might both give the string CCT
- --
- -- We could just use one Int for all the instance decls, but this
- -- way the uniques change less when you add an instance decl,
- -- hence less recompilation
-
- , FiniteMap (ModuleName, OccName) Name
- -- Ensures that one (module,occname) pair gets one unique
- )
-
-
---------------------------------
-data ExportEnv = ExportEnv Avails Fixities
-type Avails = [AvailInfo]
-type Fixities = [(Name, Fixity)]
-
type ExportAvails = (FiniteMap ModuleName Avails,
-- Used to figure out "module M" export specifiers
-- Includes avails only from *unqualified* imports
-- (see 1.4 Report Section 5.1.1)
- NameEnv AvailInfo) -- Used to figure out all other export specifiers.
- -- Maps a Name to the AvailInfo that contains it
-
-
-data GenAvailInfo name = Avail name -- An ordinary identifier
- | AvailTC name -- The name of the type or class
- [name] -- The available pieces of type/class.
- -- NB: If the type or class is itself
- -- to be in scope, it must be in this list.
- -- Thus, typically: AvailTC Eq [Eq, ==, /=]
-
-type AvailInfo = GenAvailInfo Name
-type RdrAvailInfo = GenAvailInfo OccName
+ AvailEnv) -- Used to figure out all other export specifiers.
\end{code}
%===================================================
\begin{code}
type ExportItem = (ModuleName, [RdrAvailInfo])
-type VersionInfo name = [ImportVersion name]
-type ImportVersion name = (ModuleName, Version, WhetherHasOrphans, WhatsImported name)
+type ImportVersion name = (ModuleName, WhetherHasOrphans, IsBootInterface, WhatsImported name)
+
+type ModVersionInfo = (Version, -- Version of the whole module
+ Version, -- Version number for all fixity decls together
+ Version) -- ...ditto all rules together
type WhetherHasOrphans = Bool
-- An "orphan" is
-- * a transformation rule in a module other than the one defining
-- the function in the head of the rule.
-data WhatsImported name = Everything
- | Specifically [LocalVersion name] -- List guaranteed non-empty
+type IsBootInterface = Bool
+
+data WhatsImported name = NothingAtAll -- The module is below us in the
+ -- hierarchy, but we import nothing
- -- ("M", hif, ver, Everything) means there was a "module M" in
- -- this module's export list, so we just have to go by M's version, "ver",
- -- not the list of LocalVersions.
+ | Everything Version -- The module version
+ | Specifically Version -- Module version
+ Version -- Fixity version
+ Version -- Rules version
+ [(name,Version)] -- List guaranteed non-empty
+ deriving( Eq )
+ -- 'Specifically' doesn't let you say "I imported f but none of the fixities in
+ -- the module". If you use anything in the module you get its fixity and rule version
+ -- So if the fixities or rules change, you'll recompile, even if you don't use either.
+ -- This is easy to implement, and it's safer: you might not have used the rules last
+ -- time round, but if someone has added a new rule you might need it this time
-type LocalVersion name = (name, Version)
+ -- 'Everything' means there was a "module M" in
+ -- this module's export list, so we just have to go by M's version,
+ -- not the list of (name,version) pairs
data ParsedIface
= ParsedIface {
- pi_mod :: Version, -- Module version number
+ pi_mod :: Module, -- Complete with package info
+ pi_vers :: Version, -- Module version number
pi_orphan :: WhetherHasOrphans, -- Whether this module has orphans
pi_usages :: [ImportVersion OccName], -- Usages
pi_exports :: [ExportItem], -- Exports
- pi_decls :: [(Version, RdrNameHsDecl)], -- Local definitions
pi_insts :: [RdrNameInstDecl], -- Local instance declarations
- pi_rules :: [RdrNameRuleDecl] -- Rules
+ pi_decls :: [(Version, RdrNameHsDecl)], -- Local definitions
+ pi_fixity :: (Version, [RdrNameFixitySig]), -- Local fixity declarations, with their version
+ pi_rules :: (Version, [RdrNameRuleDecl]), -- Rules, with their version
+ pi_deprecs :: [RdrNameDeprecation] -- Deprecations
}
-type InterfaceDetails = (WhetherHasOrphans,
- VersionInfo Name, -- Version information for what this module imports
- ExportEnv) -- What modules this one depends on
-
-
--- needed by Main to fish out the fixities assoc list.
-getIfaceFixities :: InterfaceDetails -> Fixities
-getIfaceFixities (_, _, ExportEnv _ fs) = fs
-
type RdrNamePragma = () -- Fudge for now
-------------------
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{The renamer state}
+%* *
+%************************************************************************
+
+\begin{code}
data Ifaces = Ifaces {
+
+ -- PERSISTENT FIELDS
iImpModInfo :: ImportedModuleInfo,
-- Modules this one depends on: that is, the union
-- of the modules its *direct* imports depend on.
-- dependencies (direct or not) of the imported module.
iDecls :: DeclsMap, -- A single, global map of Names to decls
+ -- we can get away with importing them abstractly
- iFixes :: FixityEnv, -- A single, global map of Names to fixities
+ iInsts :: IfaceInsts,
+ -- The as-yet un-slurped instance decls; this bag is depleted when we
+ -- slurp an instance decl so that we don't slurp the same one twice.
+ -- Each is 'gated' by the names that must be available before
+ -- this instance decl is needed.
+
+ iRules :: IfaceRules,
+ -- Similar to instance decls, only for rules
+
+ -- SEMI-EPHEMERAL FIELDS
+ -- iFixes and iDeprecs are accumulated here while one module
+ -- is compiled, but are transferred to the package symbol table
+ -- at the end. We don't add them to the table as we encounter them
+ -- because doing so would require us to have a mutable symbol table
+ -- which is yukky.
+
+ iFixes :: FixityEnv, -- A single, global map of Names to fixities
+ -- See comments with RnIfaces.lookupFixity
+ iDeprecs :: DeprecationEnv,
+
+ -- EPHEMERAL FIELDS
+ -- These fields persist during the compilation of a single module only
iSlurp :: NameSet,
-- All the names (whether "big" or "small", whether wired-in or not,
-- whether locally defined or not) that have been slurped in so far.
- iVSlurp :: [(Name,Version)],
+ iVSlurp :: [(Name,Version)]
-- All the (a) non-wired-in (b) "big" (c) non-locally-defined
-- names that have been slurped in so far, with their versions.
-- This is used to generate the "usage" information for this module.
-- Subset of the previous field.
-
- iInsts :: Bag GatedDecl,
- -- The as-yet un-slurped instance decls; this bag is depleted when we
- -- slurp an instance decl so that we don't slurp the same one twice.
- -- Each is 'gated' by the names that must be available before
- -- this instance decl is needed.
-
- iRules :: Bag GatedDecl
- -- Ditto transformation rules
}
-type GatedDecl = (NameSet, (Module, RdrNameHsDecl))
-
type ImportedModuleInfo
- = FiniteMap ModuleName (Version, Bool, Maybe (Module, Bool, Avails))
+ = FiniteMap ModuleName (WhetherHasOrphans, IsBootInterface,
+ Maybe (Module, Version, Version, Version, WhereFrom, Avails))
+ -- The three Versions are module version, fixity version, rules version
+
-- Suppose the domain element is module 'A'
--
-- The first Bool is True if A contains
-- A.hi or A.hi-boot when importing A.f.
-- Basically, we look for A.hi if A is in the map, and A.hi-boot
-- otherwise
-
-type DeclsMap = NameEnv (Version, AvailInfo, Bool, (Module, RdrNameHsDecl))
- -- A DeclsMap contains a binding for each Name in the declaration
- -- including the constructors of a type decl etc.
- -- The Bool is True just for the 'main' Name.
\end{code}
%************************************************************************
\begin{code}
-initRn :: ModuleName -> UniqSupply -> SearchPath -> SrcLoc
- -> RnMG r
- -> IO (r, Bag ErrMsg, Bag WarnMsg)
+initRn :: DynFlags -> Finder -> GlobalSymbolTable
+ -> PersistentRenamerState
+ -> Module -> SrcLoc
-initRn mod us dirs loc do_rn = do
+initRn dflags finder gst prs mod loc do_rn = do
himaps <- mkModuleHiMaps dirs
- names_var <- newIORef (us, emptyFM, builtins)
+ names_var <- newIORef (prsNS pcs)
errs_var <- newIORef (emptyBag,emptyBag)
- iface_var <- newIORef emptyIfaces
+ iface_var <- newIORef (initIfaces prs)
let
- rn_down = RnDown { rn_loc = loc, rn_ns = names_var,
- rn_errs = errs_var,
- rn_hi_maps = himaps,
+ rn_down = RnDown { rn_mod = mod,
+ rn_loc = loc,
+
+ rn_finder = finder,
+ rn_dflags = dflags,
+ rn_gst = gst,
+
+ rn_ns = names_var,
+ rn_errs = errs_var,
rn_ifaces = iface_var,
- rn_mod = mod }
+ }
-- do the business
res <- do_rn rn_down ()
return (res, errs, warns)
+initIfaces :: PersistentRenamerState -> Ifaces
+initIfaces prs
+ = Ifaces { iDecls = prsDecls prs,
+ iInsts = prsInsts prs,
+ iRules = prsRules rules,
+
+ iFixes = emptyNameEnv,
+ iDeprecs = emptyNameEnv,
+
+ iImpModInfo = emptyFM,
+ iDeferred = emptyNameSet,
+ iSlurp = unitNameSet (mkUnboundName dummyRdrVarName),
+ -- Pretend that the dummy unbound name has already been
+ -- slurped. This is what's returned for an out-of-scope name,
+ -- and we don't want thereby to try to suck it in!
+ iVSlurp = []
+ }
+
+
initRnMS :: GlobalRdrEnv -> FixityEnv -> RnMode -> RnMS r -> RnM d r
initRnMS rn_env fixity_env mode thing_inside rn_down g_down
= let
initIfaceRnMS :: Module -> RnMS r -> RnM d r
initIfaceRnMS mod thing_inside
= initRnMS emptyRdrEnv emptyNameEnv InterfaceMode $
- setModuleRn (moduleName mod) thing_inside
-
-emptyIfaces :: Ifaces
-emptyIfaces = Ifaces { iImpModInfo = emptyFM,
- iDecls = emptyNameEnv,
- iFixes = emptyNameEnv,
- iSlurp = unitNameSet (mkUnboundName dummyRdrVarName),
- -- Pretend that the dummy unbound name has already been
- -- slurped. This is what's returned for an out-of-scope name,
- -- and we don't want thereby to try to suck it in!
- iVSlurp = [],
- iInsts = emptyBag,
- iRules = emptyBag
- }
-
--- mkUnboundName makes a place-holder Name; it shouldn't be looked at except possibly
--- during compiler debugging.
-mkUnboundName :: RdrName -> Name
-mkUnboundName rdr_name = mkLocalName unboundKey (rdrNameOcc rdr_name) noSrcLoc
-
-isUnboundName :: Name -> Bool
-isUnboundName name = getUnique name == unboundKey
+ setModuleRn mod thing_inside
builtins :: FiniteMap (ModuleName,OccName) Name
-builtins =
- bagToFM (
- mapBag (\ name -> ((moduleName (nameModule name), nameOccName name), name))
- builtinNames)
+builtins = listToFM wired_in `plusFM` listToFM known_key
+ where
+ wired_in = [ ((moduleName (nameModule name), nameOccName name), name)
+ | name <- wiredInNames ]
+
+ known_key = [ ((rdrNameModule rdr_name, rdrNameOcc rdr_name), mkKnownKeyGlobal rdr_name uniq)
+ | (rdr_name, uniq) <- knownKeyRdrNames ]
\end{code}
@renameSourceCode@ is used to rename stuff ``out-of-line'';
Sole examples: derived definitions,
which are only generated in the type checker.
-The @RnNameSupply@ includes a @UniqueSupply@, so if you call it more than
+The @NameSupply@ includes a @UniqueSupply@, so if you call it more than
once you must either split it, or install a fresh unique supply.
\begin{code}
-renameSourceCode :: ModuleName
+renameSourceCode :: DynFlags
+ -> Module
-> RnNameSupply
-> RnMS r
-> r
-renameSourceCode mod_name name_supply m
+renameSourceCode dflags mod name_supply m
= unsafePerformIO (
-- It's not really unsafe! When renaming source code we
-- only do any I/O if we need to read in a fixity declaration;
-- and that doesn't happen in pragmas etc
- mkModuleHiMaps (mkSearchPath opt_HiMap) >>= \ himaps ->
newIORef name_supply >>= \ names_var ->
newIORef (emptyBag,emptyBag) >>= \ errs_var ->
let
- rn_down = RnDown { rn_loc = mkGeneratedSrcLoc, rn_ns = names_var,
- rn_errs = errs_var, rn_hi_maps = himaps,
- rn_mod = mod_name }
+ rn_down = RnDown { rn_dflags = dflags,
+ rn_loc = mkGeneratedSrcLoc, rn_ns = names_var,
+ rn_errs = errs_var,
+ rn_mod = mod,
+ rn_ifaces = panic "rnameSourceCode: rn_ifaces" -- Not required
+ }
s_down = SDown { rn_mode = InterfaceMode,
-- So that we can refer to PrelBase.True etc
rn_genv = emptyRdrEnv, rn_lenv = emptyRdrEnv,
mapRn :: (a -> RnM d b) -> [a] -> RnM d [b]
mapRn_ :: (a -> RnM d b) -> [a] -> RnM d ()
mapMaybeRn :: (a -> RnM d (Maybe b)) -> [a] -> RnM d [b]
+flatMapRn :: (a -> RnM d [b]) -> [a] -> RnM d [b]
sequenceRn :: [RnM d a] -> RnM d [a]
foldlRn :: (b -> a -> RnM d b) -> b -> [a] -> RnM d b
mapAndUnzipRn :: (a -> RnM d (b,c)) -> [a] -> RnM d ([b],[c])
case maybe_r of
Nothing -> returnRn rs
Just r -> returnRn (r:rs)
+
+flatMapRn f [] = returnRn []
+flatMapRn f (x:xs) = f x `thenRn` \ r ->
+ flatMapRn f xs `thenRn` \ rs ->
+ returnRn (r ++ rs)
\end{code}
checkErrsRn (RnDown {rn_errs = errs_var}) l_down
= readIORef errs_var >>= \ (warns,errs) ->
return (isEmptyBag errs)
+
+doptsRn :: (DynFlags -> Bool) -> RnM d Bool
+doptsRn dopt (RnDown { rn_dflags = dflags}) l_down
+ = return (dopt dflags)
\end{code}
%=====================
\begin{code}
-getNameSupplyRn :: RnM d RnNameSupply
+getNameSupplyRn :: RnM d NameSupply
getNameSupplyRn rn_down l_down
= readIORef (rn_ns rn_down)
-setNameSupplyRn :: RnNameSupply -> RnM d ()
+setNameSupplyRn :: NameSupply -> RnM d ()
setNameSupplyRn names' (RnDown {rn_ns = names_var}) l_down
= writeIORef names_var names'
--- See comments with RnNameSupply above.
-newInstUniq :: String -> RnM d Int
-newInstUniq key (RnDown {rn_ns = names_var}) l_down
- = readIORef names_var >>= \ (us, mapInst, cache) ->
- let
- uniq = case lookupFM mapInst key of
- Just x -> x+1
- Nothing -> 0
- mapInst' = addToFM mapInst key uniq
- in
- writeIORef names_var (us, mapInst', cache) >>
- return uniq
-
getUniqRn :: RnM d Unique
getUniqRn (RnDown {rn_ns = names_var}) l_down
- = readIORef names_var >>= \ (us, mapInst, cache) ->
+ = readIORef names_var >>= \ (us, cache, ipcache) ->
let
(us1,us') = splitUniqSupply us
in
- writeIORef names_var (us', mapInst, cache) >>
+ writeIORef names_var (us', cache, ipcache) >>
return (uniqFromSupply us1)
\end{code}
%=====================
\begin{code}
-getModuleRn :: RnM d ModuleName
-getModuleRn (RnDown {rn_mod = mod_name}) l_down
- = return mod_name
+getModuleRn :: RnM d Module
+getModuleRn (RnDown {rn_mod = mod}) l_down
+ = return mod
-setModuleRn :: ModuleName -> RnM d a -> RnM d a
+setModuleRn :: Module -> RnM d a -> RnM d a
setModuleRn new_mod enclosed_thing rn_down l_down
= enclosed_thing (rn_down {rn_mod = new_mod}) l_down
\end{code}
getLocalNameEnv rn_down (SDown {rn_lenv = local_env})
= return local_env
+getGlobalNameEnv :: RnMS GlobalRdrEnv
+getGlobalNameEnv rn_down (SDown {rn_genv = global_env})
+ = return global_env
+
setLocalNameEnv :: LocalRdrEnv -> RnMS a -> RnMS a
setLocalNameEnv local_env' m rn_down l_down
= m rn_down (l_down {rn_lenv = local_env'})
extendFixityEnv fixes enclosed_scope
rn_down l_down@(SDown {rn_fixenv = fixity_env})
= let
- new_fixity_env = extendNameEnv fixity_env fixes
+ new_fixity_env = extendNameEnvList fixity_env fixes
in
enclosed_scope rn_down (l_down {rn_fixenv = new_fixity_env})
\end{code}
setIfacesRn :: Ifaces -> RnM d ()
setIfacesRn ifaces (RnDown {rn_ifaces = iface_var}) _
= writeIORef iface_var ifaces
-
-getHiMaps :: RnM d (ModuleHiMap, ModuleHiMap)
-getHiMaps (RnDown {rn_hi_maps = himaps}) _
- = return himaps
-\end{code}
-
-\begin{code}
-lookupModuleRn :: ModuleName -> RnM d Module
-lookupModuleRn x =
- getHiMaps `thenRn` \ (himap, _) ->
- case lookupFM himap x of
- Nothing -> returnRn (mkVanillaModule x)
- Just (_,x) -> returnRn x
-
\end{code}
projects / ghc-hetmet.git / blobdiff